1, 2. clean, germ-free, unpolluted, antiseptic. Sanitary,hygienic agree in being concerned with health. Sanitary refers more especially to conditions affecting health or measures for guarding against infection or disease: to insure sanitary conditions in preparing food.Hygienic is applied to whatever concerns the care of the body and the promotion of health: to live in hygienic surroundings with plenty of fresh air.2. healthy, salutary.